Hi Luiz
Am 23.02.2021 um 02:18 schrieb torjoy:
I work with time and frequency references and run some tor bridges. What is the objective of "iat_mode" setting? Is an good timming reference important for this setting? For now, i'm adminstrating 3 briges, one with iat_mode=0, iat_mode=1 and iat_mode=2. Could you explain or forward me to some reading about it?
There might be other sources, but this is a short and nice one:
[ https://github.com/mikeperry-tor/vanguards/blob/master/README_SECURITY.md ] ยง The Best Way To Use Bridges
Note the use of the iat-mode=2 parameter. Setting iat-mode=2 (as opposed to iat-mode=0 or 1) causes obfs4 to inject traffic timing changes into your outgoing traffic, which is exactly the direction you want as a service. The bridge itself does not need to have the same setting.
You can apply it to the client and/or the bridge. The outbound timing will be handled accordingly.
-- Cheers, Felix